Home / 25,298.78-34,916.90-15,090.48

Finding the Fourth Proportional to 25,298.78, 34,916.90 and 15,090.48

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Solution

The fourth proportional to 25,298.78, 34,916.90 and 15,090.48 is: 20,827.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,298.78 : 34,916.90 = 15,090.48 : x
  2. Step 2: Convert to fraction form
    25,298.78/34,916.90 = 15,090.48/x
  3. Step 3: Cross multiply
    25,298.78x = 34,916.90 × 15,090.48
  4. Step 4: Simplify right side
    25,298.78x = 526,912,649.90
  5. Step 5: Solve for x
    x = 526,912,649.90/25,298.78
  6. Step 6: Final answer
    x = 20,827.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.